钕铁硼永磁材料绿色防护涂层耐蚀行为研究OA

The corrosion resistance characteristics of Nd-Fe-B permanent magnet materials under green protective coating were studied by using electrochemical testing and corrosion morphology statistics.The results show that the green protective coating can effectively reduce the starting strength of the material corrosion reaction,increase the interface charge transfer resistance,and significantly reduce the number and expansion scale of corrosion initiation points,so that the corrosion process can transform from centralized connected expansion to local and discrete development.The above results reveal the way the green protective coating regulates the corrosion resistance behavior of Nd-Fe-B materials,and provide an experimental basis for the evaluation of the protective coating effect.